Dominance between boars switched?

Molly7

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Hi everyone,

I noticed a surprising change in my boars regarding dominance and I wonder whether this is common or not.
To provide some context: I had a cage with two boars I got from a rescue when they were around 2-3 months old. They're around 8 months old now. Izzy has been the dominant one from the start. And the other boy, Dmitri has never seriously challenged it. When they were about 4 months old and their hormones kicked in there was a bit of a struggle, but no true aggression and Izzy remained on top without much fuss. He's been rumble strutting regularly for several months, while between the two of them I had never seen Dmitri rumble strut once. He would get annoyed with Izzy occasionally and tell him to bugger off, but that was it.

Since a few months I also have a cage with two girls. Over the weekend I introduced the four of them. I knew the chances of success weren't big, but I at least wanted to try. If it failed I could always pair each boy up with a girl.

But after a bit of an uncertain start (I initially separated them because I feared it would go wrong, but after trying again and taking my time with it, it worked) they all get along fine now. I had two C&C cages which I've now turned into one big cage. It's only been a few days, but it's a promising start.

But the moment I put the boys and the girls together, Dmitri became the dominant one. And Izzy hasn't challenged it. At least not as far as I can see. No teeth chattering, no fighting, only a few nose bumps or nips that ended with a warning. It wasn't exactly what I expected, but I'm surprised at how well Izzy is taking it. Since I work from home now I can keep an eye on them and see whether anything changes.

Does this happen often? I had a lot of guinea pigs as a kid (though never two boars together) and the dominance never really seemed to change. Is there a big chance that Izzy will attempt to get on top again and if so, what should I watch out for? If necessary I can turn the cage into two cages again, but I want make sure I catch any signs of trouble in time before they get hurt.
Also, here's a picture of the four of them. The big ones are the boys and the small ones the girls. 20200519_113438.webp
 
Keeping two boars with sows will cause problems. The boys will fight because of being in the presence of the girls, this is highly unlikely to work out. It’s not something we would recommend attempting.
Even keeping a boar pair and a sow pair in different cages but within the same room can cause problems between the boys - as soon as boars smell sows, there will be issues between them without measures taken (girls being kept at the opposite side of the room, or in a stacked cage with the girls at the bottom, boars always being handled first etc).

Also, are your boars neutered? If not, then they must not be anywhere near females.

Adding More Guinea Pigs Or Merging Pairs – What Works And What Not?
 
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Yes, they have been neutered.

I've seen several successful boar groups and boar/sow groups both on this forum and on youtube, so it clearly isn't impossible. I'm aware it might not last, but I'd be crazy not to at least try. They have so much more company and room to run around now that I feel I owe it to them to give it a shot.

As for your second point, the boys had been living next to the girl cage for several months and it didn't change their behavior. Thanks for your concern anyway, I do appreciate that. As I work from home I can watch the cage all day long, so if it looks like they don't get along anymore I'll separate them.
 
No not impossible, but sow groups are typically one boar to any number of sows, not two boars to sows. Boar groups (and even trios) are hard to get to work and require a lot of space
It is of course your risk to take and you’ve clearly been lucky to this point but don’t take it for granted as your boys are coming up to the biggest hormone spike of their teens in a couple of months time and it can often be the one that really tests boar bonds even without the presence of sows
 
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